I have noticed a problem with the TX fee. When I completed the mix I put 0.00008btc as the fees for my transaction but when I received the transaction it was only 0.00002btc. That wasnt a big problem since he transaction confirmed in a few minutes but I think something is anyway wrong.
Thank you for feedback. The value is approximate, it may vary slightly both in large or smaller amount. There are some problems with calculating the weight of a transaction before it is executed, and thats why txfee approximate. Sometimes it can be smaller, sometimes bigger. We will work on it in future.